Sega Dreamcast Problems Please Help

[Sailorcancer]

OK I ordered a Universal Modified Sega Dreamcast from Lik Sang (http://www.lik-sang.com/info.php?category=4&products_id=89&)  about a week ago, on Wed. I got it.  I didnt have any games for it so i put in a Music CD to listen to, and it didnt work it took 4 mins to load, and when it was done nothing happen.  I then tryed mulitpl Music CD and each one came up with the same problem.  I then asked at a fourm community if there was anything wrong, one persion suggested to turn the potentiometer 1/8 and to continue it till it worked (http://www.whoneedsoxygen.net/index.php?cat=13 one with the ferret picture)  Well the first time I tryed it the Disc started to spin REALLY FAST, I could feel the vibration of the spin from the floor.  So then I stared to do it counter clockwise.  So far everytime is a fail.  Then I left to go get a Dreamcast game (I got PSOv.2) and the Dreamcast wont even play that.  Is there anything else I can do to make it work? Thank You

[NFG]

You bought something broken, send it back and get a warranty replacement.  And don't be fool enough to tell them you were mucking with the innards before you get an RMA!!

[Sailorcancer]

You bought something broken, send it back and get a warranty replacement.  And don't be fool enough to tell them you were mucking with the innards before you get an RMA!!

right after posting here, I went to Lik Sang and told them something was wrong with it, and asked them what I should do.  Dont worry I did not (or ever will) tell them that i opened it.